/**
 *
 *    geo-platform
 *    Rich webgis framework
 *    http://geo-platform.org
 *   ====================================================================
 *
 *   Copyright (C) 2008-2021 geoSDI Group (CNR IMAA - Potenza - ITALY).
 *
 *   This program is free software: you can redistribute it and/or modify it
 *   under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version. This program is distributed in the
 *   hope that it will be useful, but WITHOUT ANY WARRANTY; without
 *   even the implied warranty of MERCHANTABILITY or FITNESS FOR
 *   A PARTICULAR PURPOSE. See the GNU General Public License
 *   for more details. You should have received a copy of the GNU General
 *   Public License along with this program. If not, see http://www.gnu.org/licenses/
 *
 *   ====================================================================
 *
 *   Linking this library statically or dynamically with other modules is
 *   making a combined work based on this library. Thus, the terms and
 *   conditions of the GNU General Public License cover the whole combination.
 *
 *   As a special exception, the copyright holders of this library give you permission
 *   to link this library with independent modules to produce an executable, regardless
 *   of the license terms of these independent modules, and to copy and distribute
 *   the resulting executable under terms of your choice, provided that you also meet,
 *   for each linked independent module, the terms and conditions of the license of
 *   that module. An independent module is a module which is not derived from or
 *   based on this library. If you modify this library, you may extend this exception
 *   to your version of the library, but you are not obligated to do so. If you do not
 *   wish to do so, delete this exception statement from your version.
 */
package org.geosdi.geoplatform.gui.client.action.toolbar;

import org.geosdi.geoplatform.gui.action.ToolbarMapAction;
import org.geosdi.geoplatform.gui.client.Resources;
import org.geosdi.geoplatform.gui.client.event.ZoomNextEvent;
import org.geosdi.geoplatform.gui.client.event.ZoomNextEventHandler;
import org.geosdi.geoplatform.gui.client.widget.map.MapLayoutWidget;
import org.geosdi.geoplatform.gui.configuration.action.GeoPlatformEventHandler;
import org.geosdi.geoplatform.gui.impl.map.GeoPlatformMap;
import org.geosdi.geoplatform.gui.puregwt.GPHandlerManager;

import com.extjs.gxt.ui.client.event.ButtonEvent;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.ui.AbstractImagePrototype;
import org.geosdi.geoplatform.gui.client.i18n.MapModuleConstants;

/**
 * @author Giuseppe La Scaleia - CNR IMAA geoSDI Group
 * @email giuseppe.lascaleia@geosdi.org
 * 
 */
public class ZoomNextAction extends ToolbarMapAction
        implements GeoPlatformEventHandler {

    private GeoPlatformMap mapWidget;
    private HandlerRegistration handlerRegistration;

    public ZoomNextAction(GeoPlatformMap theMapWidget) {
        super(AbstractImagePrototype.create(Resources.ICONS.zoomNext()), 
                MapModuleConstants.INSTANCE.ZoomNextAction_tooltipText());
        this.mapWidget = theMapWidget;
        this.addHandler();
    }

    /**
     * (non-Javadoc)
     *
     * @see com.extjs.gxt.ui.client.event.SelectionListener#componentSelected(com.extjs.gxt.ui.client.event.ComponentEvent)
     */
    @Override
    public void componentSelected(ButtonEvent ce) {
        ((MapLayoutWidget) this.mapWidget).getNavigationHistory().nextTrigger();
    }

    @Override
    public void addHandler() {
        this.handlerRegistration = GPHandlerManager.addHandler(
                ZoomNextEvent.TYPE, new ZoomNextEventHandler() {

            @Override
            public void onActivation(boolean activate) {
                if (activate) {
                    enable();
                } else {
                    disable();
                }
            }
        });
    }

    @Override
    public void removeHandler() {
        this.handlerRegistration.removeHandler();
    }
}
